Sodium Bicarbonate → N-[4-[(N-methyl-N-(tetrahydropyran-4-yl)aminomethyl)]phenyl]-N-[7-(4-methylphenyl)-2,3-dihydro-1-benzooxepin-4-yl]methylamine

関与物質

反応手順

Into a solution of 7-(4-methylphenyl)-2,3-dihydro-1-benzooxepine-4-carbaldehyde (191 mg)) and 4-[N-methyl-N-(tetrahydropyran-4-yl)aminomethyl]aniline (159 mg) in 1,2-dichloroethane (5 ml) was added sodium triacetoxyborohydride (168 mg). The resulting mixture was stirred at room temperature for 4.5 hours, additional sodium triacetoxyborohydride (76 mg) was added thereto and the resulting mixture was stirred further for 4 days. The reaction mixture was mixed with an aqueous solution of sodium bicarbonate under ice cooling and was extracted with dichloromethane, and the extract was washed with an aqueous solution of sodium chloride. The extract was dried (anhydrous magnesium sulfate) and was then concentrated under reduced pressure. The residue was subjected to purification using silica gel column chromatography (ethyl acetate/methanol=10/1), 4 N hydrochloric acid was added to the resulting product and the precipitate was collected by filtration and was washed with ethyl acetate to obtain N-[4-[(N-methyl-N-(tetrahydropyran-4-yl)aminomethyl)]phenyl]-N-[7-(4-methylphenyl)-2,3-dihydro-1-benzooxepin-4-yl]methylamine (compound 34) (88 mg) as a light yellow powder.

情報源と証拠